错误管理开发，有人知道解决办法吗？

let registerId = -1; 
let callback: errorManager.ErrorObserver = { 
onUnhandledException: (errMsg: string) => { 
  console.log('ENTRY_ABILITY, onUnhandledException, errMsg: ' + JSON.stringify(errMsg)); 
}, 
onException: (errorObj: Error) => { 
  console.log('ENTRY_ABILITY, onException, errorObj: ', JSON.stringify(errorObj)); 
} 
}

export default class EntryAbility extends UIAbility { 
​ 
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void { 
  hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate'); 
  registerId = errorManager.on("error", callback); 
  abilityWant = want; 
}